Figure 14. Heater Assembly: Model U tube 125U45, 150U45 and 170U45
6'
0"
REF
LECTORS
T
Y
PIC
A
L OF
4
6½"
5' 9
"
5'
8"
24
' 0" N
O
MINAL OVERALL ASSE
MBLED
L
E
N
G
T
H
5' 5"
B2
A2
4' 2
MAX"
4"
x
10' T
U
BE
4"
x
7
' T
U
B
E
4"
x
7
' T
U
B
E
4" x
10'
B
U
R
N
E
R
TU
B
E
B
B2
A2
26¼"
P
A
RT
S L
IS
T
PART
#
B
R
ACKET
SET
1 no BR4UTU45
FAN (150 &
17
0)
1 no 2560-
1
TU
RBULATO
R
(FAN TU
BE
)
1 no 6619
T
FAN (125)
1 no 2576
T
STA
NDARD
4"
C
O
UPLER
4 no 20219
5
or
4 no 1265
REFLECT
O
R 6
'
A
L
UMIN
UM
or
REFL
E
C
TO
R 6'
ST
A
IN
L
ESS
STEEL
1 no 3293-
S
U
B
or
1 no 3182-SU
B
E
N
D CAP
(SET)
ALU
M
IN
UM
or
EN
D C
A
P
(S
ET)
STAINLE
SS S
T
EEL
B
U
RNER
TU
BE
10'
AL
U
M
IN
IZ
ED
1 no T-4
101
1 no T-4
106
B
U
RNER
TU
BE
5'
AL
U
M
IN
IZ
ED
(170 ON
LY)
RAD
IANT TUBE 7
'
MI
LD ST
EEL
**
HIGH
T
E
MP
4" COUPLER
1 no C11
2110
**
HT
CO
UPLER
(125
& 1
50)
SU
SPENS
ION
BRA
C
KET TY
PE A
REFL
ECTOR
F
ASTN
E
RS
U B
O
LT
S
SUS
PENS
IO
N
BRA
C
KET
RADI
A
N
T
TUBES
REFL
ECTOR
GAP
A2
4
" B
URNE
R U
BOLT
. D
E
TAI
L
# 6579
-SUB
SU
SPENS
ION
BRA
C
KET TY
PE B
U B
O
LT
S
SUS
PENS
IO
N
BRA
C
KET
RADI
A
N
T
TUBES
REFL
ECTOR
B2
GAP
4
" B
URNE
R U
BOLT
. D
E
TAI
L
# 6580
-SUB
SUSP
ENSI
ON B
R
ACK
E
T TYPE B
DE
TAI
L
# 65
80-SUB
B
U BOLTS
SUS
PENS
IO
N
BRAC
K
E
T
RA
DIANT
TU
BES
R
E
FLE
C
TOR
8'6"
(26
00mm
) T
URBULATOR
DETAIL
RET
URN
TUBE
FRO
M
FAN END
IMPO
RT
ANT
:
T
H
E
2ND
RE
FL
EC
TOR
OV
ERLA
PS
TH
E
1ST
. TH
E 3R
D RE
FLEC
T
OR
O
VERLAPS
TH
E
2N
D A
ND
S
O
ON
TO
W
A
R
D
S T
H
E F
A
N
.
COU
P
LER
**
HI
GH T
E
MP
COUP
LER
(V
SUS170 O
N
LY)
**
HI
G
H
T
E
M
P
C
O
U
P
LE
R
4"
x 5' T
U
BE
4" x
5'
ALUMINIZED
TU
B
E
(170
ON
LY
)
TUR
B
ULA
T
OR
2 no T-4
103
RAD
IANT TUBE 1
0'
MIL
D
STEE
L
2 no C11
2110
** H
T
CO
UP
LER
(
170
O
N
LY)
MO
DE
L
NU
MBER
170-U
4
5
150-U
4
5
125-U
4
5
BTU/
HR
175,000
150,000
125,000
2 no T-4
073
RAD
IANT TUBE 5
'
MI
LD ST
EEL
(125/150
)
1 no T-4
053
RAD
IANT TUBE 5
'
MI
LD ST
EEL
(170 O
N
LY)
2 no T-4
053
4"
x 5' T
U
BE
29